conly



M. S. GONLY.

MAGNETO ELECTRIC GENERATOR.

Patented Oct. 2, 1883.

l H s uv m 11' witnesses.

UNITED STATES PATENT OFFICE.

MAHLON S. CONLY, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO XVILLIAM M. CRONYN, OF SAME PLACE.

MAGNETO-ELECTRIC GENERATOR.

SPECIFICATION forming part of Letters Application filed December 28, 1882.

To all whom, it may concern:

Be it known that I, b'IAHLON S. CONLY, of Indianapolis, county of Marion, State of Indiana, have invented a new and useful Improvement in Magneto-Electric Generators, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings.

The object of my invention is to so construct IO the box for containing the different parts usually employed in hand or signaling magnetoeleetric generators that it shall also serve as the permanent magnet used for polarizing the revolving armature, thus greatly simplifying I 5 and cheapening the construction of the same. This I accomplish by the method of construe tion illustrated by the drawings, as follows:

Figure 1 is a perspective view of a cubical box, four of whose sides-namely, top, bottom,

right, andleftare of hard iron or steel, oriron or steel hardened during process of casting or working, or by subsequent process, open across at bottom G, Fig. 2, from front B, Fig. 3, to back 0, Fig. 3, and magnetized, and whose front B, Fig. 3, and back 0, Fig. 8, are of wood, or other non-magnetic material. The box is here shown as in position for use in connection with a telephonedine, against a wall in an upright position. For the sake of simplicity, all parts of the signaling system not absolutely necessary to show my claim are omitted. Fig. 2 is a front elevation of the box with the front, 13, Fig. 1, off, exposing to view the above-described iron or steel 3 5 shell or magnet A and other inner parts. I)

D are pole-pieces of an ordinary magnetogenerator cylinder which rests on and is firmly clamped to the ends of the said shell by means of screws H, Fig. 2, passing through a brass Patent No. 285,799, dated October 2, 1883.

(No model.)

plate, F, Fig. 2, which bridges the opening, and into them. The pole-pieces thus form extensions to the magnet, by which an ordinary Siemens armature, 19, Fig. 2, is brought into the magnetic field. Fig. 3 is a side "iew of the box,-with the near side broken away, show 5 ing a side view of the inner arrangements.

Any suitable means of revolving the armature may be used, though toothed-wheel gears are preferable, as shown in Fig. 3. The elec trical circuit is completed from line bindingpostto groundbinding post, by passing from the one by means of a metal strip or wire to any convenient place of fastening on the metal part of box thence through box to polepieces, through pole-pieces and bodyof arma- 5 5 ture to inner end of wire convolutions on armature, through convolutions to insulated center pin, out through center pin to spring, and thence through strip or wire to the other binding post, in the usual manner.

I do not confine myself to any particular form of box, as it is evident that the same objects may be attained by a variety of shapes; neither do I confine myself to the use of independent pole-pieees, as they may be cast or forged with the box-magnet in one piece.

\Vhat I claim as my invention, and wish to cover by Letters Patent, is

A box for imigneioelectric machines, in which the front and back portions are formed of non-magnetic material and the sides of the magnet itself, the latter having poles that project inward and partially surround the rotating armature, substantially as set forth.

MAHLON S. CON LY.

Vitnesses:

MARsHALL Moonn, HARRY J. MILLIGAN. 

